Gfirstguess {Rquake}

First guess from a pick file

Description

Extract the lat lon from the pick file.

Usage

Gfirstguess(Ldat, type = "first")

Arguments

Ldat

Matrix of data information

type

one of "first", "mean", or "median"

Details

Either the earliest arrival or the average station is returned. Used internally in the earthquake location program to provide a first guess.

Value

vector, lat, lon, z and tee

Author(s)

Jonathan M. Lees<[e-mail]>

See Also

Klocate

Examples

data(GH, package='RSEIS')
WW = RSEIS::uwpfile2ypx(GH$pickfile)

twpx  = latlonz2wpx(WW, GH$pickfile$STAS )

g1 = Gfirstguess(twpx, type = "first")